51 
Locality. —Terebratulina substriata occurs at Suffield, near 
Scarborough, in the Lower Coral rag, zone of Ammonites 
perarmatus. The bed in which they occur is described by 
Blake and Hudleston, Quarterly Journal Geological Society, 
vol. xxxiii., page 331, as Crystalline gritty doggers in a 
brownish brash, containing abundance of Spongia florceps, and a 
small Waldheimia (Zeilleria Hucllestoni ), and many other fossils. 
This quarry has been long noted for the quantity of small 
sponges, Spongia florieeps, Oalcispongia cor a Hina, and several 
new species discovered by S. Chadwick, and to be described by 
Dr. Hinde. It is to be noticed that Quenstedt “ Die 
Brachiopoden,” page 2 14, states that this Brachiopod appears to 
prefer a spongy layer as its dwelling place. Terebratulina 
substriata is much rarer than Zeilleria Hucllestoni which occurs 
abundantly in this bed, although specimens of it can always be 
found by careful search; the flat form often being covered by a 
coating of sand, which makes it difficult to find; yet many 
specimens of this shell have been recently found by myself, 
S. Chadwick, W G. Lether, and other local Geologists 
